I hope that you can harvest big spuds and young greens before the winter time @solominer. Also you can just plant sections of the vines so you would not need to plant the spuds themselves.
They like a full sun and lot of watering and wants to creep and produce many leaves.
I made my mother to order some greens for me, I have been wanting some because it is really delicious eaten with some dipping sauce @solominer :P